McDonald's Menu Mixtape: Bigger And Smaller Big Macs

There will soon be new sizes of the iconic McDonald's Big Mac. (Photo via McDonald's)

You might be able to sing the "two all beef patties" jingle by heart. Now, McDonald's is going to do its version of a Big Mac mix tape.

In the last move in its effort to shake things up, McDonald's is introducing a smaller and bigger version of the iconic Big Mac burger. It apparently feels it needs to do something to attract a key audience's attention to that sandwich.

Starting in early 2017, McDonald's will offer the Grand Mac, which as you might expect is bigger than the conventional Big Mac, and the Mac Jr. across the country. It has already tested the new sizes in central Ohio and the Dallas/Fort Worth area, according to Advertising Age.

Next up will be restaurants in Florida and Pittsburgh, which will start selling them this month ahead of the national rollout.

The Grand Mac is two patties that together will weigh one-third of a pound before cooking, two cheese slices, all the rest of the ingredients and a bigger sesame seed bun. For reference, a regular Big Mac's meat adds up to one-fifth of a pound.

The Mac Jr., or Baby Mac as it's tempting to call it, will be a single layer burger, with toppings, but no middle layer, since you're only dealing with one patty.

The Big Mac has been around since a franchisee introduced it in 1967, and it went national in 1968. The jingle made its debut in 1974, although it's been used off and on through the years.

McDonald's hasn't tinkered much with the Big Mac formula. It briefly tried a Snack Wrap Mac in 2008, in the middle of the wrap craze, which quietly disappeared.

The fast food giant has been trying all manner of things to boost its fortunes, some of which are working. Its decision to offer all-day breakfast and cleaner McNuggets is boosting its same-store sales at a time when other fast casual restaurants are seeing their sales fall off.

"The Big Mac is a legend and a great-tasting burger with hints of pickle relish, mustard, garlic and onions," McDonald's corporate chef Mike Haracz said in a statement. "We listened to our customers who told us they wanted different ways to enjoy the one-of-a-kind Big Mac taste."

The corporate kitchen also is busy concocting a burger that McDonald's hopes will compete with Shake Shack and Five Guys, which are dominating the premium burger business.

But until that arrives, McDonald's will go with what it knows, burger wise, and see what its customers think of the variations.